<template>
  <!-- 工作日历 -->
  <div>
    <!-- 年和月 -->
    <el-row type='flex' justify='end'>
        <!-- 年 用组件给定一个日期 日期获取年 年取前五年+后五年 -->
        <el-select @change="dataChange" v-model="currentYear" size='small' style="width: 120px">
            <el-option v-for="item in yearList" :key="item" :label="item" :value='item'/>
        </el-select>
        <!-- 月份 -->
        <el-select @change="dataChange" v-model="currentMonth" size='small' style="width: 120px;margin-left:10px">
            <!-- 选项 循环-->
            <el-option v-for="item in 12" :key="item" :label='item' :value='item' />

        </el-select>
    </el-row>
    <!-- 放置一个日历组件 -->
    <el-calendar v-model="currentDate">
      <el-template>
        123
      </el-template>
    </el-calendar>
  </div>
</template>

<script>
export default {
    props: {
        startDate:{
            type: Date,
            // 回调函数式的返回值
            default: () => new Date() //如果没有传递startDate 就取当前时间
        }
    },
    methods: {
      dataChange(){
        // 生成新的日期
        // alert(this.currentYear)  
       this.currentDate = new Date(`${this.currentYear}-${this.currentMonth}-1`) //以1号为开始

      }
    },
    data () {
        return {
            yearList: [], //要遍历的年的数组
            currentYear: null, //当前年份
            currentMonth: null, //当前月份
            currentDate: null  //当前时间
        }
    },
    created () {
        // 获取当前的年份
       this.currentYear = this.startDate.getFullYear() //得到当前的年份
       this.currentMonth = this.startDate.getMonth() + 1 //当前的月份
        //快速生成数组的方法
       this.yearList = Array.from(Array(11),(v,i) => this.currentYear + i -5)    
        this.dataChange() //主动调用最新时间
    }
}
</script>

<style  scoped >
 /deep/ .el-calendar-day {
  height:  auto;
 }
 /deep/ .el-calendar-table__row td,/deep/ .el-calendar-table tr td:first-child,  /deep/ .el-calendar-table__row td.prev{
  border:none;
 }
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text{
  width: 20px;
  height: 20px;
  line-height: 20px;
 display: inline-block;

}
 /deep/ .el-calendar-table td.is-selected .text{
   background: #409eff;
   color: #fff;
   border-radius: 50%;
 }
 /deep/ .el-calendar__header {
   display: none
 }
</style>